摘要
To screen out the rapeseed(Brassica napus) combinations that are suitable for the production of both oilseed and vegetable, we carried out a field experiment for 11 new combinations(hybrids) of rapeseed and then performed grey relation analysis and cluster analysis on 12 traits including the yield and quality of young stem,seed yield, and several agronomic traits after harvesting of young stem. The results showed that A11, A7, and A4 had higher main stalk yield than other combinations.The young stem/leaf ratios of A11, A5, A7, A4, A3, and A1 were in line with the quality requirements for young stem commodity. The soluble sugar content of A2,A8, and A10 was higher than that of CK(Fengyou 737), and the seed yields of A4,A3, A2, A1, A5, and A6 were higher than that of CK. The 11 rapeseed combinations were classified into 3 grades by grey relation analysis and cluster analysis. Two combinations, A4(Y20A×95C4R) and A11(3194A×09-5R), showed the weighted relation degrees higher than 0.95, which were clustered into grade I by cluster analysis. They had good agronomic traits and good performance as both oilseed and vegetable. A8, A5, A3, A7, A2, A10, A6, and A1 were clustered into grade Ⅱ and A9 into grade Ⅲ. In this study, the oilseed and vegetable dual-purpose rapeseed combinations were screened out based on grey relation analysis and cluster analysis,which can provide reference for the breeding of oilseed and vegetable dual-purpose rapeseed combinations.
为筛选优质“油蔬两用”组合,以11个油菜新组合为材料,采用灰色关联度法和聚类分析法对菜薹产量、品质及摘薹后油菜的农艺性状及菜籽产量等12项性状指标进行综合性评价。结果表明:平头期A11、A7、A4一次采主薹菜薹产量排名靠前,A11、A5、A7、A4、A3、A1的薹茎/叶符合菜薹商品品质要求;A2、A8、A10的可溶性糖含量高于沣油737,A4、A3、A2、A1、A5、A6的菜籽产量高于沣油737;11个油菜组合可分为3个等级,其中A4、A11为Ⅰ级且其“油蔬两用”综合性状表现优良,A8、A5、A3、A7、A2、A10、A6、A1为Ⅱ级,A9为Ⅲ级。A4、A11综合表现较好,可做为油蔬两用品种进行推广。
